Design Method of Surface Receive Coil with High SNR for Various Field Intensities in MRI

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technology with a high spatial resolution. We aim to design a single-channel radiofrequency receive coil with an optimized signal-to-noise ratio (SNR) for various field intensities in MRI. We propose a method that maximizes the SNR th...

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Bibliographic Details
Published inJournal of the Magnetics Society of Japan Vol. 48; no. 3
Main Authors Takahashi, M, Fushimi, M, Yabukami, S, Sekino, M, Kuwahata, A
Format Journal Article
LanguageJapanese
Published Tokyo Japan Science and Technology Agency 01.05.2024
Subjects
Design optimization
Magnetic flux
Magnetic resonance imaging
Medical imaging
Noise intensity
Radio frequency
Shape optimization
Signal to noise ratio
Spatial resolution
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Summary:Magnetic resonance imaging (MRI) is a noninvasive medical imaging technology with a high spatial resolution. We aim to design a single-channel radiofrequency receive coil with an optimized signal-to-noise ratio (SNR) for various field intensities in MRI. We propose a method that maximizes the SNR through surface current optimization using the target field method. The proposed method can design a dedicated coil shape by solving an objective function with terms related to the signal, coil resistance noise and sample resistance noise. We found coil shapes for a rat kidney model in the case of static magnetic field intensity |B0| = 7 T, 0.3 T and 6.5 mT as an example. Our method will enable the design of single channel receive coil for preclinical applications of small animals.
ISSN:1882-2924
1882-2932
DOI:10.3379/msjmag.2405R003